标签:str height earth out googl generated ring list lse
package gis1; import java.net.MalformedURLException; import java.net.URL; import gov.nasa.worldwind.avlist.AVKey; import gov.nasa.worldwind.avlist.AVList; import gov.nasa.worldwind.avlist.AVListImpl; import gov.nasa.worldwind.geom.Angle; import gov.nasa.worldwind.geom.LatLon; import gov.nasa.worldwind.layers.mercator.BasicMercatorTiledImageLayer; import gov.nasa.worldwind.layers.mercator.MercatorSector; import gov.nasa.worldwind.util.LevelSet; import gov.nasa.worldwind.util.Tile; import gov.nasa.worldwind.util.TileUrlBuilder; public class GoogleLayer extends BasicMercatorTiledImageLayer{ public GoogleLayer() { super(makeLevels()); // TODO Auto-generated constructor stub } private static LevelSet makeLevels() { // TODO Auto-generated method stub AVList params = new AVListImpl(); params.setValue(AVKey.TILE_WIDTH, 256); params.setValue(AVKey.TILE_HEIGHT, 256); params.setValue(AVKey.DATA_CACHE_NAME, "Earth/GoogleMap"); params.setValue(AVKey.DATASET_NAME, "*"); params.setValue(AVKey.FORMAT_SUFFIX, ".jpg"); params.setValue(AVKey.NUM_LEVELS, 16); params.setValue(AVKey.NUM_EMPTY_LEVELS, 0); params.setValue(AVKey.LEVEL_ZERO_TILE_DELTA, new LatLon(Angle .fromDegrees(22.5d), Angle.fromDegrees(45d))); params.setValue(AVKey.SECTOR, new MercatorSector(-1.0, 1.0, Angle.NEG180, Angle.POS180)); params.setValue(AVKey.TILE_URL_BUILDER, new URLBuilder()); return new LevelSet(params); } private static class URLBuilder implements TileUrlBuilder { public URL getURL(Tile tile, String imageFormat) throws MalformedURLException { String url=String.format( "http://www.google.cn/maps/vt?lyrs=s@183&gl=cn&x=%s&y=%s&z=%s", tile.getColumn(), (1 << (tile.getLevelNumber()) + 3) - 1 - tile.getRow(), (tile.getLevelNumber() + 3) ); System.out.println(url); return new URL(url); } } }
[转]worldwind在线加载google地图,或者基于墨卡托投影的切片地图
标签:str height earth out googl generated ring list lse
原文地址:https://www.cnblogs.com/rainbow70626/p/12355296.html